Patents by Inventor Jose Armando Silva

Jose Armando Silva has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for the conversion, under mild conditions and in aqueous medium, of gaseous and liquid alkanes into carboxylic acids
    Patent number: 8058472
    Abstract: The present invention concerns a new efficient method for the selective transformation, under mild conditions and in aqueous medium, of gaseous (ethane, propane and n-butane) and liquid (n-pentane, n-hexane, cyclopentane and cyclohexane) alkanes into carboxylic acids bearing one more carbon atom, characterized by a single-pot low-temperature (25-60° C.) reaction of the alkane with carbon monoxide in water/acetonitrile liquid medium, either in the absence or in the presence of a metal catalyst, in systems containing also an oxidant (a peroxodisulphate salt).
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: November 15, 2011
    Assignee: Instituto Superior Tecnico
    Inventors: Armando Pombeiro, Marina Kirillova, Alexander Kirillov, Jose Armando Silva, Joao Frausto Da Silva
  • METHOD FOR THE CONVERSION, UNDER MILD CONDITIONS AND IN AQUEOUS MEDIUM, OF GASEOUS AND LIQUID ALKANES INTO CARBOXYLIC ACIDS
    Publication number: 20100099912
    Abstract: The present invention concerns a new efficient method for the selective transformation, under mild conditions and in aqueous medium, of gaseous (ethane, propane and n-butane) and liquid (n-pentane, n-hexane, cyclopentane and cyclohexane) alkanes into carboxylic acids bearing one more carbon atom, characterized by a single-pot low-temperature (25-60° C.) reaction of the alkane with carbon monoxide in water/acetonitrile liquid medium, either in the absence or in the presence of a metal catalyst, in systems containing also an oxidant (a peroxodisulphate salt).
    Type: Application
    Filed: January 17, 2008
    Publication date: April 22, 2010
    Inventors: Armando Pombeiro, Marina Kirillova, Alexander Kirillov, José Armando Silva, João Fraústo Silva